Listening to HD650 from the HeadRoom Chest. These are the ones that Anax said sounded veiled. And they do, which is wierd. I did not think Anetode's (nor MacKat's) HD650s sounded this way, and I know my rig has not changed that much since then. They sound a little bit better on the Dynahi than the BA, but really not by much.
I'll measure these and see what happens. The bassy is muddy on these. HD will be interesting.